import 'package:flutter/material.dart';

class ScaffoldTestWidght extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        title: "1111",
        home: Scaffold(
          floatingActionButton:  const Icon(Icons.access_alarm),
          persistentFooterButtons:   const [
            Icon(Icons.abc_rounded),
            Icon(Icons.access_time_filled),
            Icon(Icons.access_alarm)
          ],
          appBar: AppBar(
            backgroundColor: Colors.amber,
            title:  const Text("学习"),
          ),
          body:  const Text("body"),
          bottomNavigationBar:   const Text("bottomNavigationBar"),
        ));
  }
}

main() {
  runApp(ScaffoldTestWidght());
}
